Unit 3: Chemical Reactions and Equations Final Assessment Review

Front

What happens in a chemical reaction?

Back

Bonds between atoms break and/or are formed.

Front

What is the temperature at which a solid substance becomes a liquid?

Back

Melting point.

Front

What is made of two or more different substances?

Back

Mixture.

Front

If a substance is soluble in water, what does that mean?

Back

It dissolves completely.

Front

What type of change occurs when bacteria in milk causes it to curdle?

Back

Chemical change.

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is a reactant?

Back

A substance that undergoes change in a chemical reaction.

Front

What is a product?

Back

A substance that is formed as a result of a chemical reaction.

Front

What is an example of a physical change?

Back

Melting ice.